Patents by Inventor James R. Burgtorf

James R. Burgtorf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing n-chlorophthalimide
    Patent number: 4082766
    Abstract: N-Chlorophthalimide is prepared by contacting an alkali metal salt of phthalimide with chlorine under substantially non-aqueous conditions in the presence of a halogenated aliphatic hydrocarbon and at a temperature of from about -10.degree. C. to about +40.degree. C.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: April 4, 1978
    Assignee: Eli Lilly and Company
    Inventors: Ta-Sen Chou, James R. Burgtorf